How do you pick and choose what personal information you reveal about yourself on fluther?

We all reveal so much of ourselves on this site, however, I can’t say that I really “know” any of you; I might know your opinion on things, or what you look like assuming your avatar is actually you. Some people choose to reveal their sexuality, their religious preference, age, etc. Why do you choose to reveal certain personal details, but not others, or do you? Are you one of the truly anonymous flutherites out there? Do these things just come out in the conversation, or do you deliberately choose what and when you reveal things about yourself?